3689f9f8b0
Merge tag 'bitmap-5.17-rc1' of git://github.com/norov/linux
...
Pull bitmap updates from Yury Norov:
- introduce for_each_set_bitrange()
- use find_first_*_bit() instead of find_next_*_bit() where possible
- unify for_each_bit() macros
* tag 'bitmap-5.17-rc1' of git://github.com/norov/linux:
vsprintf: rework bitmap_list_string
lib: bitmap: add performance test for bitmap_print_to_pagebuf
bitmap: unify find_bit operations
mm/percpu: micro-optimize pcpu_is_populated()
Replace for_each_*_bit_from() with for_each_*_bit() where appropriate
find: micro-optimize for_each_{set,clear}_bit()
include/linux: move for_each_bit() macros from bitops.h to find.h
cpumask: replace cpumask_next_* with cpumask_first_* where appropriate
tools: sync tools/bitmap with mother linux
all: replace find_next{,_zero}_bit with find_first{,_zero}_bit where appropriate
cpumask: use find_first_and_bit()
lib: add find_first_and_bit()
arch: remove GENERIC_FIND_FIRST_BIT entirely
include: move find.h from asm_generic to linux
bitops: move find_bit_*_le functions from le.h to find.h
bitops: protect find_first_{,zero}_bit properly
2022-01-23 06:20:44 +02:00
1c52283265
Merge branch 'akpm' (patches from Andrew)
...
Merge yet more updates from Andrew Morton:
"This is the post-linux-next queue. Material which was based on or
dependent upon material which was in -next.
69 patches.
Subsystems affected by this patch series: mm (migration and zsmalloc),
sysctl, proc, and lib"
* emailed patches from Andrew Morton <akpm@linux-foundation.org >: (69 commits)
mm: hide the FRONTSWAP Kconfig symbol
frontswap: remove support for multiple ops
mm: mark swap_lock and swap_active_head static
frontswap: simplify frontswap_register_ops
frontswap: remove frontswap_test
mm: simplify try_to_unuse
frontswap: remove the frontswap exports
frontswap: simplify frontswap_init
frontswap: remove frontswap_curr_pages
frontswap: remove frontswap_shrink
frontswap: remove frontswap_tmem_exclusive_gets
frontswap: remove frontswap_writethrough
mm: remove cleancache
lib/stackdepot: always do filter_irq_stacks() in stack_depot_save()
lib/stackdepot: allow optional init and stack_table allocation by kvmalloc()
proc: remove PDE_DATA() completely
fs: proc: store PDE()->data into inode->i_private
zsmalloc: replace get_cpu_var with local_lock
zsmalloc: replace per zpage lock with pool->migrate_lock
locking/rwlocks: introduce write_lock_nested
...
2022-01-22 11:28:23 +02:00
8205ae327e
Merge tag '5.17-rc-part2-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6
...
Pull cifs fixes from Steve French:
- multichannel fixes, addressing additional reconnect and DFS scenarios
- reenabling fscache support (indexing rewrite, metadata caching e.g.)
- send additional version information during NTLMSSP negotiate to
improve debugging
- fix for a mount race
- DFS fixes
- fix for a memory leak for stable
* tag '5.17-rc-part2-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
cifs: update internal module number
smb3: send NTLMSSP version information
cifs: Support fscache indexing rewrite
cifs: cifs_ses_mark_for_reconnect should also update reconnect bits
cifs: update tcpStatus during negotiate and sess setup
cifs: make status checks in version independent callers
cifs: remove repeated state change in dfs tree connect
cifs: fix the cifs_reconnect path for DFS
cifs: remove unused variable ses_selected
cifs: protect all accesses to chan_* with chan_lock
cifs: fix the connection state transitions with multichannel
cifs: check reconnects for channels of active tcons too
smb3: add new defines from protocol specification
cifs: serialize all mount attempts
cifs: quirk for STATUS_OBJECT_NAME_INVALID returned for non-ASCII dfs refs
cifs: alloc_path_with_tree_prefix: do not append sep. if the path is empty
cifs: clean up an inconsistent indenting
cifs: free ntlmsspblob allocated in negotiate
2022-01-22 11:12:26 +02:00
1cb69c8044
Merge tag 'xfs-5.17-merge-7' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
...
Pull xfs fixes from Darrick Wong:
"One of the patches removes some dead code from xfs_ioctl32.h and the
other fixes broken workqueue flushing in the inode garbage collector.
- Minor cleanup of ioctl32 cruft
- Clean up open coded inodegc workqueue function calls"
* tag 'xfs-5.17-merge-7' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: flush inodegc workqueue tasks before cancel
xfs: remove unused xfs_ioctl32.h declarations
2022-01-22 11:04:27 +02:00
7fd350f6ff
Merge tag 'fscache-fixes-20220121' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs
...
Pull more fscache updates from David Howells:
"A set of fixes and minor updates for the fscache rewrite:
- Fix mishandling of volume collisions (the wait condition is
inverted and so it was only waiting if the volume collision was
already resolved).
- Fix miscalculation of whether there's space available in
cachefiles.
- Make sure a default cache name is set on a cache if the user hasn't
set one by the time they bind the cache.
- Adjust the way the backing inode is presented in tracepoints, add a
tracepoint for mkdir and trace directory lookup.
- Add a tracepoint for failure to set the active file mark.
- Add an explanation of the checks made on the backing filesystem.
- Check that the backing filesystem supports tmpfile.
- Document how the page-release cancellation of the read-skip
optimisation works.
And I've included a change for netfslib:
- Make ops->init_rreq() optional"
* tag 'fscache-fixes-20220121' of git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs:
netfs: Make ops->init_rreq() optional
fscache: Add a comment explaining how page-release optimisation works
cachefiles: Check that the backing filesystem supports tmpfiles
cachefiles: Explain checks in a comment
cachefiles: Trace active-mark failure
cachefiles: Make some tracepoint adjustments
cachefiles: set default tag name if it's unspecified
cachefiles: Calculate the blockshift in terms of bytes, not pages
fscache: Fix the volume collision wait condition
2022-01-22 10:59:32 +02:00
0a4ee51818
mm: remove cleancache
...
Patch series "remove Xen tmem leftovers".
Since the removal of the Xen tmem driver in 2019, the cleancache hooks
are entirely unused, as are large parts of frontswap. This series
against linux-next (with the folio changes included) removes
cleancaches, and cuts down frontswap to the bits actually used by zswap.
This patch (of 13):
The cleancache subsystem is unused since the removal of Xen tmem driver
in commit 814bbf49dchttps://lkml.kernel.org/r/20211224062246.1258487-1-hch@lst.de
Link: https://lkml.kernel.org/r/20211224062246.1258487-2-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de >
Reviewed-by: Juergen Gross <jgross@suse.com >
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org >
Cc: Konrad Rzeszutek Wilk <Konrad.wilk@oracle.com >
Cc: Hugh Dickins <hughd@google.com >
Cc: Seth Jennings <sjenning@redhat.com >
Cc: Dan Streetman <ddstreet@ieee.org >
Cc: Vitaly Wool <vitaly.wool@konsulko.com >
Cc: Matthew Wilcox (Oracle) <willy@infradead.org >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org >
2022-01-22 08:33:38 +02:00
359745d783
proc: remove PDE_DATA() completely
...
Remove PDE_DATA() completely and replace it with pde_data().
[akpm@linux-foundation.org: fix naming clash in drivers/nubus/proc.c]
[akpm@linux-foundation.org: now fix it properly]
Link: https://lkml.kernel.org/r/20211124081956.87711-2-songmuchun@bytedance.com
Signed-off-by: Muchun Song <songmuchun@bytedance.com >
Acked-by: Christian Brauner <christian.brauner@ubuntu.com >
Cc: Alexey Dobriyan <adobriyan@gmail.com >
Cc: Alexey Gladkov <gladkov.alexey@gmail.com >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org >
2022-01-22 08:33:37 +02:00
6dfbbae14a
fs: proc: store PDE()->data into inode->i_private
...
PDE_DATA(inode) is introduced to get user private data and hide the
layout of struct proc_dir_entry. The inode->i_private is used to do the
same thing as well. Save a copy of user private data to inode->
i_private when proc inode is allocated. This means the user also can
get their private data by inode->i_private.
Introduce pde_data() to wrap inode->i_private so that we can remove
PDE_DATA() from fs/proc/generic.c and make PTE_DATE() as a wrapper of
pde_data(). It will be easier if we decide to remove PDE_DATE() in the
future.
Link: https://lkml.kernel.org/r/20211124081956.87711-1-songmuchun@bytedance.com
Signed-off-by: Muchun Song <songmuchun@bytedance.com >
Acked-by: Christian Brauner <christian.brauner@ubuntu.com >
Cc: Alexey Dobriyan <adobriyan@gmail.com >
Cc: Alexey Gladkov <gladkov.alexey@gmail.com >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org >
2022-01-22 08:33:37 +02:00
f0bc21b268
fs/coredump: move coredump sysctls into its own file
...
This moves the fs/coredump.c respective sysctls to its own file.
Link: https://lkml.kernel.org/r/20211129211943.640266-6-mcgrof@kernel.org
Signed-off-by: Xiaoming Ni <nixiaoming@huawei.com >
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org >
Cc: Al Viro <viro@zeniv.linux.org.uk >
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com >
Cc: Antti Palosaari <crope@iki.fi >
Cc: Christian Brauner <christian.brauner@ubuntu.com >
Cc: "David S. Miller" <davem@davemloft.net >
Cc: Eric Biederman <ebiederm@xmission.com >
Cc: Eric Biggers <ebiggers@google.com >
Cc: Iurii Zaikin <yzaikin@google.com >
Cc: Kees Cook <keescook@chromium.org >
Cc: Lukas Middendorf <kernel@tuxforce.de >
Cc: Masami Hiramatsu <mhiramat@kernel.org >
Cc: "Naveen N. Rao" <naveen.n.rao@linux.ibm.com >
Cc: Stephen Kitt <steve@sk2.org >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org >
2022-01-22 08:33:36 +02:00
d8c0418aac
kernel/sysctl.c: rename sysctl_init() to sysctl_init_bases()
...
Rename sysctl_init() to sysctl_init_bases() so to reflect exactly what
this is doing.
Link: https://lkml.kernel.org/r/20211129211943.640266-4-mcgrof@kernel.org
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org >
Cc: Al Viro <viro@zeniv.linux.org.uk >
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com >
Cc: Antti Palosaari <crope@iki.fi >
Cc: Christian Brauner <christian.brauner@ubuntu.com >
Cc: "David S. Miller" <davem@davemloft.net >
Cc: Eric Biederman <ebiederm@xmission.com >
Cc: Eric Biggers <ebiggers@google.com >
Cc: Iurii Zaikin <yzaikin@google.com >
Cc: Kees Cook <keescook@chromium.org >
Cc: Lukas Middendorf <kernel@tuxforce.de >
Cc: Masami Hiramatsu <mhiramat@kernel.org >
Cc: "Naveen N. Rao" <naveen.n.rao@linux.ibm.com >
Cc: Stephen Kitt <steve@sk2.org >
Cc: Xiaoming Ni <nixiaoming@huawei.com >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org >
2022-01-22 08:33:36 +02:00
ab171b952c
fs: move namespace sysctls and declare fs base directory
...
This moves the namespace sysctls to its own file as part of the
kernel/sysctl.c spring cleaning
Since we have now removed all sysctls for "fs", we now have to declare
it on the filesystem code, we do that using the new helper, which
reduces boiler plate code.
We rename init_fs_shared_sysctls() to init_fs_sysctls() to reflect that
now fs/sysctls.c is taking on the burden of being the first to register
the base directory as well.
Lastly, since init code will load in the order in which we link it we
have to move the sysctl code to be linked in early, so that its early
init routine runs prior to other fs code. This way, other filesystem
code can register their own sysctls using the helpers after this:
* register_sysctl_init()
* register_sysctl()
Link: https://lkml.kernel.org/r/20211129211943.640266-3-mcgrof@kernel.org
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org >
Cc: Al Viro <viro@zeniv.linux.org.uk >
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com >
Cc: Antti Palosaari <crope@iki.fi >
Cc: Christian Brauner <christian.brauner@ubuntu.com >
Cc: "David S. Miller" <davem@davemloft.net >
Cc: Eric Biederman <ebiederm@xmission.com >
Cc: Eric Biggers <ebiggers@google.com >
Cc: Iurii Zaikin <yzaikin@google.com >
Cc: Kees Cook <keescook@chromium.org >
Cc: Lukas Middendorf <kernel@tuxforce.de >
Cc: Masami Hiramatsu <mhiramat@kernel.org >
Cc: "Naveen N. Rao" <naveen.n.rao@linux.ibm.com >
Cc: Stephen Kitt <steve@sk2.org >
Cc: Xiaoming Ni <nixiaoming@huawei.com >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org >
2022-01-22 08:33:36 +02:00
51cb8dfc5a
sysctl: add and use base directory declarer and registration helper
...
Patch series "sysctl: add and use base directory declarer and
registration helper".
In this patch series we start addressing base directories, and so we
start with the "fs" sysctls. The end goal is we end up completely
moving all "fs" sysctl knobs out from kernel/sysctl.
This patch (of 6):
Add a set of helpers which can be used to declare and register base
directory sysctls on their own. We do this so we can later move each of
the base sysctl directories like "fs", "kernel", etc, to their own
respective files instead of shoving the declarations and registrations
all on kernel/sysctl.c. The lazy approach has caught up and with this,
we just end up extending the list of base directories / sysctls on one
file and this makes maintenance difficult due to merge conflicts from
many developers.
The declarations are used first by kernel/sysctl.c for registration its
own base which over time we'll try to clean up. It will be used in the
next patch to demonstrate how to cleanly deal with base sysctl
directories.
[mcgrof@kernel.org: null-terminate the ctl_table arrays]
Link: https://lkml.kernel.org/r/YafJY3rXDYnjK/gs@bombadil.infradead.org
Link: https://lkml.kernel.org/r/20211129211943.640266-1-mcgrof@kernel.org
Link: https://lkml.kernel.org/r/20211129211943.640266-2-mcgrof@kernel.org
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org >
Cc: Al Viro <viro@zeniv.linux.org.uk >
Cc: Kees Cook <keescook@chromium.org >
Cc: Iurii Zaikin <yzaikin@google.com >
Cc: Xiaoming Ni <nixiaoming@huawei.com >
Cc: Eric Biederman <ebiederm@xmission.com >
Cc: Stephen Kitt <steve@sk2.org >
Cc: Lukas Middendorf <kernel@tuxforce.de >
Cc: Antti Palosaari <crope@iki.fi >
Cc: Christian Brauner <christian.brauner@ubuntu.com >
Cc: Eric Biggers <ebiggers@google.com >
Cc: "Naveen N. Rao" <naveen.n.rao@linux.ibm.com >
Cc: "David S. Miller" <davem@davemloft.net >
Cc: Masami Hiramatsu <mhiramat@kernel.org >
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org >
2022-01-22 08:33:36 +02:00
1998f19324
fs: move pipe sysctls to is own file
...
kernel/sysctl.c is a kitchen sink where everyone leaves their dirty
dishes, this makes it very difficult to maintain.
To help with this maintenance let's start by moving sysctls to places
where they actually belong. The proc sysctl maintainers do not want to
know what sysctl knobs you wish to add for your own piece of code, we
just care about the core logic.
So move the pipe sysctls to its own file.
Link: https://lkml.kernel.org/r/20211129205548.605569-10-mcgrof@kernel.org
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org >
Cc: Al Viro <viro@zeniv.linux.org.uk >
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com >
Cc: Antti Palosaari <crope@iki.fi >
Cc: Eric Biederman <ebiederm@xmission.com >
Cc: Iurii Zaikin <yzaikin@google.com >
Cc: "J. Bruce Fields" <bfields@fieldses.org >
Cc: Jeff Layton <jlayton@kernel.org >
Cc: Kees Cook <keescook@chromium.org >
Cc: Lukas Middendorf <kernel@tuxforce.de >
Cc: Stephen Kitt <steve@sk2.org >
Cc: Xiaoming Ni <nixiaoming@huawei.com >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org >
2022-01-22 08:33:36 +02:00
66ad398634
fs: move fs/exec.c sysctls into its own file
...
kernel/sysctl.c is a kitchen sink where everyone leaves their dirty
dishes, this makes it very difficult to maintain.
To help with this maintenance let's start by moving sysctls to places
where they actually belong. The proc sysctl maintainers do not want to
know what sysctl knobs you wish to add for your own piece of code, we
just care about the core logic.
So move the fs/exec.c respective sysctls to its own file.
Since checkpatch complains about style issues with the old code, this
move also fixes a few of those minor style issues:
* Use pr_warn() instead of prink(WARNING
* New empty lines are wanted at the beginning of routines
Link: https://lkml.kernel.org/r/20211129205548.605569-9-mcgrof@kernel.org
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org >
Cc: Al Viro <viro@zeniv.linux.org.uk >
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com >
Cc: Antti Palosaari <crope@iki.fi >
Cc: Eric Biederman <ebiederm@xmission.com >
Cc: Iurii Zaikin <yzaikin@google.com >
Cc: "J. Bruce Fields" <bfields@fieldses.org >
Cc: Jeff Layton <jlayton@kernel.org >
Cc: Kees Cook <keescook@chromium.org >
Cc: Lukas Middendorf <kernel@tuxforce.de >
Cc: Stephen Kitt <steve@sk2.org >
Cc: Xiaoming Ni <nixiaoming@huawei.com >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org >
2022-01-22 08:33:36 +02:00
9c011be132
fs: move namei sysctls to its own file
...
kernel/sysctl.c is a kitchen sink where everyone leaves their dirty
dishes, this makes it very difficult to maintain.
To help with this maintenance let's start by moving sysctls to places
where they actually belong. The proc sysctl maintainers do not want to
know what sysctl knobs you wish to add for your own piece of code, we
just care about the core logic.
So move namei's own sysctl knobs to its own file.
Other than the move we also avoid initializing two static variables to 0
as this is not needed:
* sysctl_protected_symlinks
* sysctl_protected_hardlinks
Link: https://lkml.kernel.org/r/20211129205548.605569-8-mcgrof@kernel.org
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org >
Cc: Al Viro <viro@zeniv.linux.org.uk >
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com >
Cc: Antti Palosaari <crope@iki.fi >
Cc: Eric Biederman <ebiederm@xmission.com >
Cc: Iurii Zaikin <yzaikin@google.com >
Cc: "J. Bruce Fields" <bfields@fieldses.org >
Cc: Jeff Layton <jlayton@kernel.org >
Cc: Kees Cook <keescook@chromium.org >
Cc: Lukas Middendorf <kernel@tuxforce.de >
Cc: Stephen Kitt <steve@sk2.org >
Cc: Xiaoming Ni <nixiaoming@huawei.com >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org >
2022-01-22 08:33:36 +02:00
dd81faa883
fs: move locking sysctls where they are used
...
kernel/sysctl.c is a kitchen sink where everyone leaves their dirty
dishes, this makes it very difficult to maintain.
To help with this maintenance let's start by moving sysctls to places
where they actually belong. The proc sysctl maintainers do not want to
know what sysctl knobs you wish to add for your own piece of code, we
just care about the core logic.
The locking fs sysctls are only used on fs/locks.c, so move them there.
Link: https://lkml.kernel.org/r/20211129205548.605569-7-mcgrof@kernel.org
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org >
Cc: Al Viro <viro@zeniv.linux.org.uk >
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com >
Cc: Antti Palosaari <crope@iki.fi >
Cc: Eric Biederman <ebiederm@xmission.com >
Cc: Iurii Zaikin <yzaikin@google.com >
Cc: "J. Bruce Fields" <bfields@fieldses.org >
Cc: Jeff Layton <jlayton@kernel.org >
Cc: Kees Cook <keescook@chromium.org >
Cc: Lukas Middendorf <kernel@tuxforce.de >
Cc: Stephen Kitt <steve@sk2.org >
Cc: Xiaoming Ni <nixiaoming@huawei.com >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org >
2022-01-22 08:33:36 +02:00
d1d8ac9edf
fs: move shared sysctls to fs/sysctls.c
...
To help with this maintenance let's start by moving sysctls to places
where they actually belong. The proc sysctl maintainers do not want to
know what sysctl knobs you wish to add for your own piece of code, we
just care about the core logic.
To help with this maintenance let's start by moving sysctls to places
where they actually belong. The proc sysctl maintainers do not want to
know what sysctl knobs you wish to add for your own piece of code, we
just care about the core logic.
So move sysctls which are shared between filesystems into a common file
outside of kernel/sysctl.c.
Link: https://lkml.kernel.org/r/20211129205548.605569-6-mcgrof@kernel.org
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org >
Cc: Al Viro <viro@zeniv.linux.org.uk >
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com >
Cc: Antti Palosaari <crope@iki.fi >
Cc: Eric Biederman <ebiederm@xmission.com >
Cc: Iurii Zaikin <yzaikin@google.com >
Cc: "J. Bruce Fields" <bfields@fieldses.org >
Cc: Jeff Layton <jlayton@kernel.org >
Cc: Kees Cook <keescook@chromium.org >
Cc: Lukas Middendorf <kernel@tuxforce.de >
Cc: Stephen Kitt <steve@sk2.org >
Cc: Xiaoming Ni <nixiaoming@huawei.com >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org >
2022-01-22 08:33:36 +02:00
54771613e8
sysctl: move maxolduid as a sysctl specific const
...
The maxolduid value is only shared for sysctl purposes for use on a max
range. Just stuff this into our shared const array.
[akpm@linux-foundation.org: fix sysctl_vals[], per Mickaël]
Link: https://lkml.kernel.org/r/20211129205548.605569-5-mcgrof@kernel.org
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org >
Signed-off-by: Mickaël Salaün <mic@digikod.net >
Cc: Al Viro <viro@zeniv.linux.org.uk >
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com >
Cc: Antti Palosaari <crope@iki.fi >
Cc: Eric Biederman <ebiederm@xmission.com >
Cc: Iurii Zaikin <yzaikin@google.com >
Cc: "J. Bruce Fields" <bfields@fieldses.org >
Cc: Jeff Layton <jlayton@kernel.org >
Cc: Kees Cook <keescook@chromium.org >
Cc: Lukas Middendorf <kernel@tuxforce.de >
Cc: Stephen Kitt <steve@sk2.org >
Cc: Xiaoming Ni <nixiaoming@huawei.com >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org >
2022-01-22 08:33:36 +02:00
c8c0c239d5
fs: move dcache sysctls to its own file
...
kernel/sysctl.c is a kitchen sink where everyone leaves their dirty
dishes, this makes it very difficult to maintain.
To help with this maintenance let's start by moving sysctls to places
where they actually belong. The proc sysctl maintainers do not want to
know what sysctl knobs you wish to add for your own piece of code, we
just care about the core logic.
So move the dcache sysctl clutter out of kernel/sysctl.c. This is a
small one-off entry, perhaps later we can simplify this representation,
but for now we use the helpers we have. We won't know how we can
simplify this further untl we're fully done with the cleanup.
[arnd@arndb.de: avoid unused-function warning]
Link: https://lkml.kernel.org/r/20211203190123.874239-2-arnd@kernel.org
Link: https://lkml.kernel.org/r/20211129205548.605569-4-mcgrof@kernel.org
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org >
Signed-off-by: Arnd Bergmann <arnd@arndb.de >
Cc: Al Viro <viro@zeniv.linux.org.uk >
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com >
Cc: Antti Palosaari <crope@iki.fi >
Cc: Eric Biederman <ebiederm@xmission.com >
Cc: Iurii Zaikin <yzaikin@google.com >
Cc: "J. Bruce Fields" <bfields@fieldses.org >
Cc: Jeff Layton <jlayton@kernel.org >
Cc: Kees Cook <keescook@chromium.org >
Cc: Lukas Middendorf <kernel@tuxforce.de >
Cc: Stephen Kitt <steve@sk2.org >
Cc: Xiaoming Ni <nixiaoming@huawei.com >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org >
2022-01-22 08:33:36 +02:00
204d5a24e1
fs: move fs stat sysctls to file_table.c
...
kernel/sysctl.c is a kitchen sink where everyone leaves their dirty
dishes, this makes it very difficult to maintain.
To help with this maintenance let's start by moving sysctls to places
where they actually belong. The proc sysctl maintainers do not want to
know what sysctl knobs you wish to add for your own piece of code, we
just care about the core logic.
We can create the sysctl dynamically on early init for fs stat to help
with this clutter. This dusts off the fs stat syctls knobs and puts
them into where they are declared.
Link: https://lkml.kernel.org/r/20211129205548.605569-3-mcgrof@kernel.org
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org >
Cc: Al Viro <viro@zeniv.linux.org.uk >
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com >
Cc: Antti Palosaari <crope@iki.fi >
Cc: Eric Biederman <ebiederm@xmission.com >
Cc: Iurii Zaikin <yzaikin@google.com >
Cc: "J. Bruce Fields" <bfields@fieldses.org >
Cc: Jeff Layton <jlayton@kernel.org >
Cc: Kees Cook <keescook@chromium.org >
Cc: Lukas Middendorf <kernel@tuxforce.de >
Cc: Stephen Kitt <steve@sk2.org >
Cc: Xiaoming Ni <nixiaoming@huawei.com >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org >
2022-01-22 08:33:36 +02:00
1d67fe5850
fs: move inode sysctls to its own file
...
Patch series "sysctl: 4th set of kernel/sysctl cleanups".
This is slimming down the fs uses of kernel/sysctl.c to the point that
the next step is to just get rid of the fs base directory for it and
move that elsehwere, so that next patch series starts dealing with that
to demo how we can end up cleaning up a full base directory from
kernel/sysctl.c, one at a time.
This patch (of 9):
kernel/sysctl.c is a kitchen sink where everyone leaves their dirty
dishes, this makes it very difficult to maintain.
To help with this maintenance let's start by moving sysctls to places
where they actually belong. The proc sysctl maintainers do not want to
know what sysctl knobs you wish to add for your own piece of code, we
just care about the core logic.
So move the inode sysctls to its own file. Since we are no longer using
this outside of fs/ remove the extern declaration of its respective proc
helper.
We use early_initcall() as it is the earliest we can use.
[arnd@arndb.de: avoid unused-variable warning]
Link: https://lkml.kernel.org/r/20211203190123.874239-1-arnd@kernel.org
Link: https://lkml.kernel.org/r/20211129205548.605569-1-mcgrof@kernel.org
Link: https://lkml.kernel.org/r/20211129205548.605569-2-mcgrof@kernel.org
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org >
Signed-off-by: Arnd Bergmann <arnd@arndb.de >
Cc: Al Viro <viro@zeniv.linux.org.uk >
Cc: Kees Cook <keescook@chromium.org >
Cc: Iurii Zaikin <yzaikin@google.com >
Cc: Xiaoming Ni <nixiaoming@huawei.com >
Cc: Eric Biederman <ebiederm@xmission.com >
Cc: Stephen Kitt <steve@sk2.org >
Cc: Lukas Middendorf <kernel@tuxforce.de >
Cc: Antti Palosaari <crope@iki.fi >
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com >
Cc: Jeff Layton <jlayton@kernel.org >
Cc: "J. Bruce Fields" <bfields@fieldses.org >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org >
2022-01-22 08:33:35 +02:00
b1f2aff888
sysctl: share unsigned long const values
...
Provide a way to share unsigned long values. This will allow others to
not have to re-invent these values.
Link: https://lkml.kernel.org/r/20211124231435.1445213-9-mcgrof@kernel.org
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org >
Cc: Al Viro <viro@zeniv.linux.org.uk >
Cc: Amir Goldstein <amir73il@gmail.com >
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com >
Cc: Antti Palosaari <crope@iki.fi >
Cc: Arnd Bergmann <arnd@arndb.de >
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org >
Cc: Benjamin LaHaise <bcrl@kvack.org >
Cc: Clemens Ladisch <clemens@ladisch.de >
Cc: David Airlie <airlied@linux.ie >
Cc: Douglas Gilbert <dgilbert@interlog.com >
Cc: Eric Biederman <ebiederm@xmission.com >
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org >
Cc: Iurii Zaikin <yzaikin@google.com >
Cc: James E.J. Bottomley <jejb@linux.ibm.com >
Cc: Jani Nikula <jani.nikula@intel.com >
Cc: Jani Nikula <jani.nikula@linux.intel.com >
Cc: Jan Kara <jack@suse.cz >
Cc: Joel Becker <jlbec@evilplan.org >
Cc: John Ogness <john.ogness@linutronix.de >
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com >
Cc: Joseph Qi <joseph.qi@linux.alibaba.com >
Cc: Julia Lawall <julia.lawall@inria.fr >
Cc: Kees Cook <keescook@chromium.org >
Cc: Lukas Middendorf <kernel@tuxforce.de >
Cc: Mark Fasheh <mark@fasheh.com >
Cc: Martin K. Petersen <martin.petersen@oracle.com >
Cc: Paul Turner <pjt@google.com >
Cc: Peter Zijlstra <peterz@infradead.org >
Cc: Petr Mladek <pmladek@suse.com >
Cc: Phillip Potter <phil@philpotter.co.uk >
Cc: Qing Wang <wangqing@vivo.com >
Cc: "Rafael J. Wysocki" <rafael@kernel.org >
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com >
Cc: Sebastian Reichel <sre@kernel.org >
Cc: Sergey Senozhatsky <senozhatsky@chromium.org >
Cc: Stephen Kitt <steve@sk2.org >
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org >
Cc: Suren Baghdasaryan <surenb@google.com >
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp >
Cc: "Theodore Ts'o" <tytso@mit.edu >
Cc: Xiaoming Ni <nixiaoming@huawei.com >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org >
2022-01-22 08:33:35 +02:00
3ba442d533
fs: move binfmt_misc sysctl to its own file
...
kernel/sysctl.c is a kitchen sink where everyone leaves their dirty
dishes, this makes it very difficult to maintain.
To help with this maintenance let's start by moving sysctls to places
where they actually belong. The proc sysctl maintainers do not want to
know what sysctl knobs you wish to add for your own piece of code, we
just care about the core logic.
This moves the binfmt_misc sysctl to its own file to help remove clutter
from kernel/sysctl.c.
Link: https://lkml.kernel.org/r/20211124231435.1445213-5-mcgrof@kernel.org
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org >
Cc: Al Viro <viro@zeniv.linux.org.uk >
Cc: Amir Goldstein <amir73il@gmail.com >
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com >
Cc: Antti Palosaari <crope@iki.fi >
Cc: Arnd Bergmann <arnd@arndb.de >
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org >
Cc: Benjamin LaHaise <bcrl@kvack.org >
Cc: Clemens Ladisch <clemens@ladisch.de >
Cc: David Airlie <airlied@linux.ie >
Cc: Douglas Gilbert <dgilbert@interlog.com >
Cc: Eric Biederman <ebiederm@xmission.com >
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org >
Cc: Iurii Zaikin <yzaikin@google.com >
Cc: James E.J. Bottomley <jejb@linux.ibm.com >
Cc: Jani Nikula <jani.nikula@intel.com >
Cc: Jani Nikula <jani.nikula@linux.intel.com >
Cc: Jan Kara <jack@suse.cz >
Cc: Joel Becker <jlbec@evilplan.org >
Cc: John Ogness <john.ogness@linutronix.de >
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com >
Cc: Joseph Qi <joseph.qi@linux.alibaba.com >
Cc: Julia Lawall <julia.lawall@inria.fr >
Cc: Kees Cook <keescook@chromium.org >
Cc: Lukas Middendorf <kernel@tuxforce.de >
Cc: Mark Fasheh <mark@fasheh.com >
Cc: Martin K. Petersen <martin.petersen@oracle.com >
Cc: Paul Turner <pjt@google.com >
Cc: Peter Zijlstra <peterz@infradead.org >
Cc: Petr Mladek <pmladek@suse.com >
Cc: Phillip Potter <phil@philpotter.co.uk >
Cc: Qing Wang <wangqing@vivo.com >
Cc: "Rafael J. Wysocki" <rafael@kernel.org >
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com >
Cc: Sebastian Reichel <sre@kernel.org >
Cc: Sergey Senozhatsky <senozhatsky@chromium.org >
Cc: Stephen Kitt <steve@sk2.org >
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org >
Cc: Suren Baghdasaryan <surenb@google.com >
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp >
Cc: "Theodore Ts'o" <tytso@mit.edu >
Cc: Xiaoming Ni <nixiaoming@huawei.com >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org >
2022-01-22 08:33:35 +02:00
ee9efac48a
sysctl: add helper to register a sysctl mount point
...
The way to create a subdirectory on top of sysctl_mount_point is a bit
obscure, and *why* we do that even so more. Provide a helper which
makes it clear why we do this.
[akpm@linux-foundation.org: export register_sysctl_mount_point() to
modules]
Link: https://lkml.kernel.org/r/20211124231435.1445213-4-mcgrof@kernel.org
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org >
Suggested-by: "Eric W. Biederman" <ebiederm@xmission.com >
Cc: Al Viro <viro@zeniv.linux.org.uk >
Cc: Amir Goldstein <amir73il@gmail.com >
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com >
Cc: Antti Palosaari <crope@iki.fi >
Cc: Arnd Bergmann <arnd@arndb.de >
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org >
Cc: Benjamin LaHaise <bcrl@kvack.org >
Cc: Clemens Ladisch <clemens@ladisch.de >
Cc: David Airlie <airlied@linux.ie >
Cc: Douglas Gilbert <dgilbert@interlog.com >
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org >
Cc: Iurii Zaikin <yzaikin@google.com >
Cc: James E.J. Bottomley <jejb@linux.ibm.com >
Cc: Jani Nikula <jani.nikula@intel.com >
Cc: Jani Nikula <jani.nikula@linux.intel.com >
Cc: Jan Kara <jack@suse.cz >
Cc: Joel Becker <jlbec@evilplan.org >
Cc: John Ogness <john.ogness@linutronix.de >
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com >
Cc: Joseph Qi <joseph.qi@linux.alibaba.com >
Cc: Julia Lawall <julia.lawall@inria.fr >
Cc: Kees Cook <keescook@chromium.org >
Cc: Lukas Middendorf <kernel@tuxforce.de >
Cc: Mark Fasheh <mark@fasheh.com >
Cc: Martin K. Petersen <martin.petersen@oracle.com >
Cc: Paul Turner <pjt@google.com >
Cc: Peter Zijlstra <peterz@infradead.org >
Cc: Petr Mladek <pmladek@suse.com >
Cc: Phillip Potter <phil@philpotter.co.uk >
Cc: Qing Wang <wangqing@vivo.com >
Cc: "Rafael J. Wysocki" <rafael@kernel.org >
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com >
Cc: Sebastian Reichel <sre@kernel.org >
Cc: Sergey Senozhatsky <senozhatsky@chromium.org >
Cc: Stephen Kitt <steve@sk2.org >
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org >
Cc: Suren Baghdasaryan <surenb@google.com >
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp >
Cc: "Theodore Ts'o" <tytso@mit.edu >
Cc: Xiaoming Ni <nixiaoming@huawei.com >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org >
2022-01-22 08:33:35 +02:00
a8f5de894f
eventpoll: simplify sysctl declaration with register_sysctl()
...
The kernel/sysctl.c is a kitchen sink where everyone leaves their dirty
dishes, this makes it very difficult to maintain.
To help with this maintenance let's start by moving sysctls to places
where they actually belong. The proc sysctl maintainers do not want to
know what sysctl knobs you wish to add for your own piece of code, we
just care about the core logic.
So move the epoll_table sysctl to fs/eventpoll.c and use
register_sysctl().
Link: https://lkml.kernel.org/r/20211123202422.819032-9-mcgrof@kernel.org
Signed-off-by: Xiaoming Ni <nixiaoming@huawei.com >
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org >
Cc: Al Viro <viro@zeniv.linux.org.uk >
Cc: Amir Goldstein <amir73il@gmail.com >
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com >
Cc: Antti Palosaari <crope@iki.fi >
Cc: Arnd Bergmann <arnd@arndb.de >
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org >
Cc: Benjamin LaHaise <bcrl@kvack.org >
Cc: Clemens Ladisch <clemens@ladisch.de >
Cc: David Airlie <airlied@linux.ie >
Cc: "Eric W. Biederman" <ebiederm@xmission.com >
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org >
Cc: Iurii Zaikin <yzaikin@google.com >
Cc: Jani Nikula <jani.nikula@linux.intel.com >
Cc: Jan Kara <jack@suse.cz >
Cc: Joel Becker <jlbec@evilplan.org >
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com >
Cc: Joseph Qi <joseph.qi@linux.alibaba.com >
Cc: Julia Lawall <julia.lawall@inria.fr >
Cc: Kees Cook <keescook@chromium.org >
Cc: Lukas Middendorf <kernel@tuxforce.de >
Cc: Mark Fasheh <mark@fasheh.com >
Cc: Paul Turner <pjt@google.com >
Cc: Peter Zijlstra <peterz@infradead.org >
Cc: Petr Mladek <pmladek@suse.com >
Cc: Phillip Potter <phil@philpotter.co.uk >
Cc: Qing Wang <wangqing@vivo.com >
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com >
Cc: Sebastian Reichel <sre@kernel.org >
Cc: Sergey Senozhatsky <senozhatsky@chromium.org >
Cc: Stephen Kitt <steve@sk2.org >
Cc: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp >
Cc: Douglas Gilbert <dgilbert@interlog.com >
Cc: James E.J. Bottomley <jejb@linux.ibm.com >
Cc: Jani Nikula <jani.nikula@intel.com >
Cc: John Ogness <john.ogness@linutronix.de >
Cc: Martin K. Petersen <martin.petersen@oracle.com >
Cc: "Rafael J. Wysocki" <rafael@kernel.org >
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org >
Cc: Suren Baghdasaryan <surenb@google.com >
Cc: "Theodore Ts'o" <tytso@mit.edu >
Signed-off-by: Andrew Morton <akpm@linux-foundation.org >
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org >
2022-01-22 08:33:35 +02:00
Linus Torvalds
Christoph Hellwig
Muchun Song
Xiaoming Ni
Luis Chamberlain